Corrections of zone.tab for CN entries
yaoz at vidar.niaaa.nih.gov
yaoz at vidar.niaaa.nih.gov
Thu Dec 13 04:33:51 UTC 2001
> From eggert at twinsun.com Wed Dec 12 19:49:16 2001
>
> CN +3114+12128 Asia/Shanghai east China - Beijing, Guangdong, Shanghai, etc.
> CN +4545+12641 Asia/Harbin Heilongjiang
> CN +2934+10635 Asia/Chongqing central China - Gansu, Guizhou, Sichuan, Yunnan, etc.
> CN +4348+08735 Asia/Urumqi Tibet & most of Xinjiang
> CN +3929+07559 Asia/Kashgar southwest Xinjiang
This is great.
My initial confusion comes from this: All China is really under one official
time ("Beijing time" in Chinese), why all those different zones? After
looking at glibc/libc/timezone/asia, I realized that zone.tab goes far
beyond the current time zone. For it, if two regions historically use
different times, they are considered in two time zones, even though they
don't have any time difference now. This would certainly help if someone
tries to ask, say, what time was it in Beijing at 8pm May 12, 1940 in
Chongqing?
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